The short answer is it took almost

The short answer is it took almost
a full year to get the windows that I ordered. This only got remedied after calling them monthly. While they were willing to help get everything sorted, their system of tracking orders or, in this case, a complaint really needs improvement as well as their installation teams. So, take anything this company says with a grain of salt and be prepared to be surprised and not in a good way.
The longer answer is that I ordered new windows for my one story house, 7 rooms (~10 windows) for the spring of 2016. I was introduced to the company by a door-to-door spokesmen and a sales rep came at a scheduled time. It fit since I was considering to getting more energy efficient windows for a while.
The initial purchase setup was slightly stressful but the rep was more than willing to spend time and show what I was ordering. After the fact, I felt slightly pressured into the purchase.
But, eventually, the installation day came (within the ~8 weeks they estimated). This wasn't a terribly satisfying process either. The team that actually performed the installation may have actually been a secondary company. While this isn't a big issue, they gave little to no communication during the installation. I really would have liked to know beforehand what the installation process entailed so I would have known what to expect. I just got a noisy installation.
Instead, I looked in every so often to see what they were doing. During this, I found that I wasn't getting exactly what I understood I was going to get when I made the purchase. But, it's hard to complain about some of these issues because the receipt that we received for the purchase was hand written and only contained the bare minimum of details.
Anyway, I understood that each of the windows would get new trim (only 2 sets of windows got that because they had to make a new foundation). The rep specifically stated that the installers were going to check the size of the windows 2 times before the install date (they only showed up once before the install and then they immediately got to work). The rep also said that they inspect the installers vehicle before they leave to ensure they have everything they need to complete the install or stop at "Home Depot"before hand (the installers did have to stop at one point because they needed some parts and had to stop at Home Depot).
The most obvious issue, though, was that we actually got an incorrect window. It was supposed to be vertical sliding but the one that was installed was horizontally sliding. It was the correct dimensions just the wrong mechanism. Hard to believe that they missed this during their "inspections". I point this out to the installation team and they said they would alert the company and get the correct one installed. I wanted to pay the remainder of the purchase as stated in the install contract but I probably would have gotten this issue resolved more quickly if I only gave them a partial payment for the just correct windows, like the install team suggested.
I didn't hear anything after this for about a month. I had to call Euro-Tech to voice the issue and they sounded like this was the first they heard of the problem. They had issues with this much as well because it seemed like my purchase was only on paper and this seemed to have gotten lost on someone's desk. But, they stated that they would find the paperwork, make the request for the new window, and call me back.
A month of silence again. They have a few more details this time but I get a similar runaround where they'll get everything sorted and get back to me. This continues each time I try and contact them. I did get some calls from them here and there but ALL of these were sales call.
The window was eventually replaced but even the windows don't seem to be as high quality as I was led to believe. The sales rep had a nice demo to suggest energy efficiency and suggested that the heating bills would be lower. No obvious changes. In fact, one month was actually higher than last year.
Moral of the story, be wary with this company.